Analytical Applications of Reactions of Iron(III) and Hexacyanoferrate(III) with 2,10-Disubstituted Phenothiazines
Figure 3
Schematic diagram of the FIA manifold used for the assay of promazine; R:
iron(III) in hydrochloric acid solution; CS: water; P: peristaltic pump; S: samples
injector; C: reactor; D: spectrophotometer adjusted to the corresponding
wavelength of the oxidized form of phenothiazines; X: recorder; W: waste.